CN103565418A - Method, device and computer program product for monitoring clinical state of subject - Google Patents

Method, device and computer program product for monitoring clinical state of subject Download PDF

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CN103565418A
CN103565418A CN201310318596.5A CN201310318596A CN103565418A CN 103565418 A CN103565418 A CN 103565418A CN 201310318596 A CN201310318596 A CN 201310318596A CN 103565418 A CN103565418 A CN 103565418A
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parameter
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output
output parameter
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CN103565418B (en
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R.科丰
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General Electric Co
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General Electric Co
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/74Details of notification to user or communication with user or patient ; user input means
    • A61B5/742Details of notification to user or communication with user or patient ; user input means using visual displays
    • A61B5/743Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
    • GPHYSICS
    • G16INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16HHEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/60ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
    • G16H40/63ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/0205Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/48Other medical applications
    • A61B5/4836Diagnosis combined with treatment in closed-loop systems or methods
    • AHUMAN NECESSITIES
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    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/74Details of notification to user or communication with user or patient ; user input means
    • A61B5/746Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0051Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/01Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022Control means therefor
    • A61M16/024Control means therefor including calculation means, e.g. using a processor
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    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
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    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • AHUMAN NECESSITIES
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    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
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    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0036Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the breathing tube and used in both inspiratory and expiratory phase
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/50General characteristics of the apparatus with microprocessors or computers
    • A61M2205/502User interfaces, e.g. screens or keyboards
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    • A61M2205/00General characteristics of the apparatus
    • A61M2205/58Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583Means for facilitating use, e.g. by people with impaired vision by visual feedback
    • A61M2205/584Means for facilitating use, e.g. by people with impaired vision by visual feedback having a color code
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    • A61M2230/08Other bio-electrical signals
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    • AHUMAN NECESSITIES
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    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00Measuring parameters of the user
    • A61M2230/20Blood composition characteristics
    • A61M2230/205Blood composition characteristics partial oxygen pressure (P-O2)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00Measuring parameters of the user
    • A61M2230/30Blood pressure
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00Measuring parameters of the user
    • A61M2230/40Respiratory characteristics
    • A61M2230/42Rate
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00Measuring parameters of the user
    • A61M2230/40Respiratory characteristics
    • A61M2230/43Composition of exhalation
    • A61M2230/432Composition of exhalation partial CO2 pressure (P-CO2)

Abstract

The invention discloses a method, a device, and a computer program product for monitoring the clinical state of a subject (100) are disclosed. To facilitate the manual adaptation of the care processes to the current state of a patient at least one input parameter (108) is retrieved, wherein each input parameter is indicative of control applied to a respective physiological process (21) of the subject. An output parameter (109) is acquired for each of the at least one input parameter, thereby to obtain a parameter pair, wherein each input and output parameter is indicative of the respective physiological process (21). Each parameter pair is presented on a dedicated two-dimensional plot (22) comprising a first axis representing respective input parameter and a second axis representing, respective output parameter, wherein the first axis is scaled according to the input operating range of the respective input parameter and the second axis is scaled according to the output operating range of the respective output parameter.

Description

The method, equipment and the computer program that are used for the clinical state of monitored object
Technical field
The disclosure relates generally to patient monitoring.More particularly, the present invention relates to the wherein physiological parameter of user based on obtaining from object and control the nursing of object or the device for the treatment of and the system of being applied to.Such device can be for example respirator, anesthesiaing system or patient monitor.
Background technology
Patient monitor is the electronic installation that is designed to show the physiologic information of relevant object.The typical physiologic information that electrocardiogram (ECG), electroencephalogram (EEG), plethysmographic signal and the signal representative relevant with blood pressure, temperature and breathing comprise in a complete set of patient monitor.Patient monitor is generally also furnished with alarm function to warn nursing staff when patient's vital sign or physiological parameter surpass or drop to lower than pre-set limit.Alarm is generally audition and visual effect, and it is intended to warn the life-threatening situation of staff or thinks epochmaking another event.In most of monitors, alarm limit can be defined by the user, and this is because restriction generally depends on that disease is because of, age, sex, Drug therapy and various other individual factor.Such as each special physiological parameters of heart rate or blood pressure, also can assign a more than alarm limit.
Except independent sensor/parameter alarm, patient monitor can be configured to send combination alarm.That is to say, some physiological parameters can be used for determining combined index, and give the alarm when combinatorial index meets specified criteria.Combination alarm can from as " heart rate low and tremulous pulse forces down " etc. be simply combined in the scope of the complicated rule-based situation of using various clinical expert systems and change.These system helps medical worker uses standardization guideline and treatment procedure, and supports that medical worker makes clinical decision.
Yet due to the complexity of the built-in intelligence of this type systematic, clinician may be difficult to understand contacting between alarm and patient's potential physiological behavior.
Because care-giver is difficult to control a plurality of self-contained units and understands the information obtaining from a plurality of devices, therefore, current patient motoring device is often integrating device, wherein integrated many abilities, and wherein built-in intelligence contributes to care-giver to obtain comprehensive situation of patient's real conditions.For example, the monitor device using in operating room often provides ventilation and medicament delivery device, so that single monitor device can interimly when whole treatment provide integrated.
Due to integrated reason, these devices provide user's capable of regulating control parameter that quantity increases, as ventilation and Drug therapy control parameter, so that nursing process adapts to the present situation of the patient who relates to.Nursing process obtains continuing to optimize to give patient safety and high-quality treatment as far as possible during treating.
Yet device is not full automatic closed-loop control device, but need user action with the state change of response alarm events or object.That is to say, user serves as the tie between the device of measuring the measuring device of physiological parameter and nursing being provided.The problem relevant with these systems is manually to adjust nursing process to adapt to present case, particularly, in the situation and environment arduous such as operating room and intensive care unit etc., wherein will continue with the quantity of the physiological parameter monitoring simultaneously quite high.The amount of closely related parameter has further been aggravated adjustment in the fact increasing, and this makes clinician's the Cognitive task more effort that even becomes.Therefore, clinician is difficult to respond the state change of alarm or object and makes correct setting.At present, clinician generally checks trend medical history and rolls by the device page to find the dependency of trend and the reason of recognizing change.
A reason that occurs above-mentioned adjustment is that current device and system can not provide and will be conducive to the artificial information of adjusting.That is to say the determining how to adjust nursing process and device the Cognitive task with the change of the state of adaption object is set when previous mode is conducive to clinician of the state of the set denoted object by various frequent cross-correlation parameters.
Summary of the invention
The problems referred to above are solved in this article, and this will be understood from the following describes.In disclosed solution, on two-dimentional plot, present two parameter by physiological process or body function and the parameter pair of cross-correlation, be illustrated in thus relevant between the control setting of nursing process and physiological parameter from object measurement.On the two-dimentional plot of respective amount, can present one or more parameters pair.
In an embodiment, a kind of method of the clinical state for monitored object comprises: fetch at least one input parameter, wherein, each input parameter indication is applied to the control of the corresponding physiological process of object; And be each input parameter collection output parameter at least one input parameter, thus to obtain at least one parameter pair that comprises input and output parameter, wherein, each output parameter is indicated corresponding physiological process and is depended on the corresponding input parameter by corresponding physiological process.Method also comprises input operation scope is attached to each input parameter, and output function scope is attached to each output parameter, obtains thus at least one input operation scope and at least one output function scope; And present each parameter pair on the two-dimentional plot of special use, special-purpose two-dimentional plot comprises the first axle that represents corresponding input parameter and the second axle that represents corresponding output parameter, wherein, the first axle is calibrated (scale) according to the input operation scope of corresponding input parameter, and the second axle is calibrated according to the output function scope of corresponding output parameter.
In another embodiment, a kind of equipment of the clinical state for monitored object comprises: input parameter unit, and it is applicable to fetch at least one input parameter, and wherein, each input parameter indication is applied to the control of the corresponding physiological process of object; And output parameter unit, it is applicable to gather output parameter into each input parameter at least one input parameter, thus to obtain at least one parameter pair that comprises input and output parameter, wherein, each output parameter is indicated corresponding physiological process and is depended on the corresponding input parameter by corresponding physiological process.Equipment also comprises: plot generation unit, and it is configured to input operation scope to be attached to each input parameter, and output function scope is attached to each output parameter, obtains thus at least one input operation scope and at least one output function scope; And display unit, it is applicable to present each parameter pair on the two-dimentional plot of special use, special-purpose two-dimentional plot comprises the first axle that represents corresponding input parameter and the second axle that represents corresponding output parameter, wherein, the first axle is calibrated according to the input operation scope of corresponding input parameter, and the second axle is calibrated according to the output function scope of corresponding output parameter.
In the another embodiment also having, a kind of computer program of the clinical state for monitored object comprises: the first program product part, it is configured to fetch at least one input parameter, and wherein, each input parameter indication is applied to the control of the corresponding physiological process of object; And the second program product part, its each input parameter being configured as at least one input parameter gathers output parameter, thus to obtain at least one parameter pair that comprises input and output parameter, wherein, each output parameter is indicated corresponding physiological process and is depended on the corresponding input parameter by corresponding physiological process.Computer program also comprises: the 3rd program product part, and it is configured to input operation scope to be attached to each input parameter and output function scope is attached to each output parameter; And the 4th program product section, it is configured to present each parameter pair on the two-dimentional plot of special use, special-purpose two-dimentional plot comprises the first axle that represents corresponding input parameter and the second axle that represents corresponding output parameter, wherein, the first axle is calibrated according to the input operation scope of corresponding input parameter, and the second axle is calibrated according to the output function scope of corresponding output parameter.
According in the detailed description and the accompanying drawings below, various other features, objects and advantages of the present invention will become apparent to those skilled in the art.
According to one side of the present disclosure, a kind of method of the clinical state for monitored object, described method comprises: fetch (31) at least one input parameter (108), wherein each input parameter indication is applied to the control of the corresponding physiological process of described object; For each input parameter in described at least one input parameter gathers (32) output parameter (109), to obtain at least one parameter pair that comprises input and output parameter, wherein each output parameter is indicated corresponding physiological process (21) and is depended on the corresponding input parameter by corresponding physiological process thus; Input operation scope is adhered to (33) to each input parameter, and output function scope is attached to each output parameter, obtain thus at least one input operation scope and at least one output function scope; On the two-dimentional plot of special use (22), present (34) each parameter pair, described two-dimentional plot comprises the first axle that represents corresponding input parameter and the second axle that represents corresponding output parameter, wherein said the first axle is calibrated according to the described input operation scope of described corresponding input parameter, and described the second axle is calibrated according to the described output function scope of described corresponding output parameter.
Wherein said collection comprises from pre-definite memory location fetches each output parameter (109) or obtains each output parameter (109) from the physiological signal data obtaining from described object.
Wherein said adhering to comprises described input operation scope is attached to each input parameter, and described output function scope is attached to each output parameter, and at least one low alarm limit from corresponding output parameter in wherein said at least one output function scope extends to the high alarm limit of corresponding output parameter.
Wherein said adhering to comprises described input operation scope is attached to each input parameter, and described output function scope is attached to each output parameter, and at least one in wherein said at least one input operation scope covers the normal span of control of corresponding input parameter.
Wherein said each parameter that presents presents a plurality of two-dimentional plots (22) to being included on the screen of display unit (110).
Also comprise described a plurality of two-dimentional plots (22) are divided into a plurality of groups, each group is associated with corresponding physiological process; And provide the special symbol (43) of the physiological process that is associated with described group of indication for each group.
Wherein said present to be also included on respective two-dimensional plot, present the successive value that each parameter is right (23,24).
According to another aspect of the present disclosure, an equipment for the clinical state of monitored object, described equipment comprises: input parameter unit (105,51), it is applicable to fetch at least one input parameter, and wherein each input parameter indication is applied to the control of the corresponding physiological process of described object; Output parameter unit (102,105,52), it is applicable to as each the collection output parameter in described at least one input parameter, to obtain at least one parameter pair that comprises input and output parameter, wherein each output parameter is indicated corresponding physiological process and is depended on the corresponding input parameter by corresponding physiological process thus; Plot generation unit (105,53), it is configured to input operation scope to be attached to each input parameter, and output function scope is attached to each output parameter, obtains thus at least one input operation scope and at least one output function scope; And display unit (105,54), it is applicable to present each parameter pair on the two-dimentional plot of special use, the two-dimentional plot of described special use comprises the first axle that represents corresponding input parameter and the second axle that represents corresponding output parameter, wherein said the first axle is calibrated according to the described input operation scope of described corresponding input parameter, and described the second axle is calibrated according to the described output function scope of described corresponding output parameter.
Wherein said output parameter unit (102,105,52) is configured to fetch each output parameter (109) or obtain each output parameter from the physiological signal data obtaining from described object from pre-definite memory location.
At least one low alarm limit from corresponding output parameter in wherein said at least one output function scope extends to the high alarm limit of corresponding output parameter.
At least one in wherein said at least one input operation scope covers the normal span of control of corresponding input parameter.
Wherein said display unit (105,54) is applicable to present a plurality of two-dimentional plots (22) on the screen of display unit (110).
Wherein said display unit is also applicable to described a plurality of two-dimentional plots to be divided into a plurality of groups, and each group is associated with given physiological process; And provide the special symbol (43) of the physiological process that is associated with described group of indication for each group.
Wherein said display unit is also applicable to present the successive value that each parameter is right (23,24) on respective two-dimensional plot.
According to another aspect of the present disclosure, a kind of computer program of the clinical state for monitored object, described computer program comprises: the first program product part, it is configured to fetch at least one input parameter (108), and wherein each input parameter indication is applied to the control of the corresponding physiological process of described object; The second program product part, it is configured as each the collection output parameter (109) in described at least one input parameter, to obtain at least one parameter pair that comprises input and output parameter, wherein each output parameter is indicated corresponding physiological process and is depended on the corresponding input parameter by corresponding physiological process thus; The 3rd program product part, it is configured to input operation scope to be attached to each input parameter and output function scope is attached to each output parameter; And the 4th program product section, it is configured to present each parameter pair on the two-dimentional plot of special use (22), the two-dimentional plot of described special use comprises the first axle that represents corresponding input parameter and the second axle that represents corresponding output parameter, wherein said the first axle is calibrated according to the described input operation scope of described corresponding input parameter, and described the second axle is calibrated according to the described output function scope of described corresponding output parameter.
Accompanying drawing explanation
Fig. 1 illustrates an embodiment for the equipment of guardianship or system;
Fig. 2 is depicted as guardianship and the parameter pair that adopts;
Fig. 3 is flow chart, and it illustrates for present the control of Fig. 1 of state and an embodiment of the operation of processing unit of object by the right set of parameter;
Fig. 4 illustrates the parameter that shows to the user example to view; And
Fig. 5 is illustrated in parameter to looking map generalization aspect, the control of Fig. 1 and the application entity of processing unit.
The specific embodiment
Fig. 1 schematically shows for nursing being provided to object 100 and for the equipment of clinical state or an embodiment of system 10 of monitored object.System/device can be for example patient monitor, anesthesiaing system and/or respirator system.Therefore the state of object can be monitored in multiple different medical system, device or environment.
This type of system or equipment gathers a plurality of physiological signals 101 from object conventionally, and wherein, a physiological signal is measured passage corresponding to one.Physiological signal generally comprises the signal of some kinds, as ECG, EEG, blood pressure, breathing and plethysmographic signal.Original real-time physiological signal data based on obtaining from object, can determine a plurality of physiological parameters.Physiological parameter refers to the variable calculating according to the one or more Wave data the physiological signal gathering from object herein.If physiological parameter obtains from a more than physiological signal (that is, measuring passage from more than), described physiological signal same signal type normally.Therefore physiological parameter also can be illustrated in definite waveshape signal value in predefined period, but physiological parameter is generally the unique parameters obtaining from one or more measurement passages, as the heart rate obtaining from ECG signal or the SpO2 value that obtains from plethysmographic signal.Each physiological parameter can have been assigned one or more alarm limit to warn nursing staff when parameter arrives or crosses alarm limit.
The physiological signal gathering from object 100 can be fed to independent measuring unit 102 by for example generally comprising the pre-processing stage (not shown) of input amplifier and wave filter.Measuring unit converts signal to the digitized forms of measuring passage for each.Digitized signal data can be stored subsequently in the memorizer 103 of system.For determining physiological parameter, measuring unit can be carried out the seasonal effect in time series parameter algorithm 104 that is applicable to recording parameters.The acquisition time series of parameter can be stored in memorizer and/or be fed to control and the processing unit 105 of system.
Control and processing unit is also applicable to control provide and nurses the nursing unit of object/install 106.Care device can be for example to generate controlled air-flow in its intake system (not shown), and air-flow is fed to the mechanical respirator of the air flue of object.In the case, control and processing unit 105 can be configured to make the needs of pressure and properties of flow adaption object, and they can be by user by user interface 107 definition of respirator system.
May in control and processing unit, determine parameter time series, that is, system does not comprise independent measuring unit yet.
For the state of monitored object, control and processing unit are configured to produce one or more input/output arguments pair.Each centering, input parameter indication is applied to the control of the given physiological process of object by nursing unit 106, and output parameter is the physiological parameter that depends on identical physiological process.Therefore, input and output parameter is by physiological process cross-correlation.Fig. 2 illustrates an input/output argument to Px/Py.Input parameter Px controls given physiological process 21, and the corresponding output parameter Py measuring from object depends on identical physiological process, and therefore also depends on the value of input parameter.Physiological process can relate to any activity or the function of human body, and this activity or function can be controlled and be assessed by output parameter by input parameter.Process can be closely related with certain organ or body system, and process also can be relevant with certain nursing stage, as departed from mechanical respirator.The two dimension that Fig. 2 also illustrates on the screen that is generated to display unit is marked and drawed Figure 22.In plot, an axle is calibrated according to the opereating specification of input parameter, and another axle is calibrated according to the opereating specification of output parameter.On plot, show the data point corresponding to the currency of input and output parameter.In the drawings, this data point is by 23 indications of little point/circle.Except current data point, can as shown in little cross 24, come display parameters to be worth in the past seasonal effect in time series as passed through in figure.Corresponding to the plot axle of input parameter, generally cover the normal span of control of input parameter, and corresponding to the general scope covering from the low alarm limit of output parameter to the high alarm limit of output parameter of the plot axle of output parameter.Plot can be shown frame, to easily notice that parameter is whether within the scope of its corresponding operating.
Referring again to Fig. 1, control and processing unit 105 is applicable to manage input/output argument pair, for use in each parameter of control physiological process, be associated with depending on physiological process and the output parameter being obtained from physiological data by measuring unit or control and processing unit.Being respectively 108 and 109 input and output parameter can be stored in the memorizer 103 of system.Control and processing unit are also applicable to control display units 110 by display adapter 111, present each input/output argument pair thus on the two dimension of the special use on the screen of display unit plot.
Fig. 3 illustrates visual in view of the state of object, by controlling and the embodiment of the step of processing unit execution.Control and processing unit are fetched and are determined that current application is to one or more input parameters of the control of object in step 31.These input parameters are generally arranged by the user of device/system, and therefore, control and processing unit only need be fetched the currency of one or more parameters.Yet user also can be chosen in the one or more input parameters that will fetch in step 31.One or more input parameters can be controlled one or more physiological process, and a more than input parameter can control identical physiological process, as oxygen supply/breathing.Subsequently, control and the definite one or more output parameters corresponding to each input parameter of processing unit, obtain thus at least one input/output argument to (step 32).One or more parameters of determining by fetching measuring unit, or by obtaining one or more parameters from the physiological signal obtaining from object, can carry out this and determine.Control and processing unit also determine that (step 33) is for the axle of the calibration of the right special use two dimension plot of each input/output argument, so that the calibration of an axle of the opereating specification of parameter definition, and the opereating specification of another parameter defines the calibration of another axle.Opereating specification can be according to the typical values definition of parameter.For example, in above-mentioned frame 22, the low side of output parameter axle can be corresponding to the low alarm limit of corresponding output parameter, and the high-end high alarm limit corresponding to relevant parameter.Provide example, the axle of heart rate can extend to from 40 that 120(is per minute to beat).As input parameter axle is another, cover the normal span of control of parameter.For example, the span of control of suction gas volume can extend to 8 liters per minute from 2 liters per minute.
Finally, control and processing unit present each parameter to (step 34) on this right plot.As implied above, before seasonal effect in time series, data point also can present.The color of point can be depending on the position of data point.For example, different colours can be used for being positioned at the data point outside frame and frame.
Above-mentioned monitoring mechanism makes user easily notice which parameter is not within its normal range.Human eye is for notice that this scrambling (that is the point, lacking) is very responsive from frame.In addition, be easy to understand key parameter and the relation and being also easy to that is applied to the control of object and understand the relation with other key parameter that can be outside its normal range.
Fig. 4 is illustrated in the example of the screen page 41 showing to user in step 34.The screen page comprises in this example for 6 right two dimensions of following input/output argument marks and draws Figure 42: propofol (PRO)-entropy (SE), sevoflurane concentration (SEV)-entropy (SE), breathing rate (RR)-tidal volume (TV), intermediate value the blowing pressure (equal surge pressure Ppeak and deduct the last malleation PEEP of breathing)-tidal volume (TV), FIO2 (O2)-oxygen saturation (SpO2) and minute volume (MV)-end-tidal are breathed CO2 (EtCO2).Each plot is the form of square box, and wherein, Lateral roots is calibrated according to the opereating specification of corresponding input parameter, and vertical side is calibrated according to the opereating specification of corresponding output parameter.Each plot illustrates its position on plot corresponding to point or the circle of the currency of corresponding input and output parameter.In this example, 3 in 6 data points in respective block, 2 at the edge of respective block, and one outside respective block.As shown in the figure, also can present the limits value of frame and the currency of parameter.
In an embodiment, parameter is to organizing into groups according to the physiological process relating to.In the example of Fig. 4, show the physiological process that group's special symbol 43 relates to indication: the first two parameter is relevant with brain function (narcotism) to PRO-SE and SEV-SE, two parameters are subsequently relevant with respiratory system with (Ppeak-PEEP)-TV to RR-TV, and latter two parameter is relevant with cardiovascular function with MV-EtCO2 to O2-SpO2.
Except comprising that, the screen page of input/output argument plot, identical screen view can comprise various other elements and information, for example, comprise the window 44 and the window 45 that comprises relevant numeric data of relevant waveform.
By input/output argument to aspect the clinical state of monitored object, therefore the control of Fig. 1 and processing unit can be regarded as the entity of three operational modules or unit, as shown in Figure 5.Input parameter unit 51 is configured to gather the currency of each input parameter, and output parameter unit 52 is configured to gather the currency corresponding to the output parameter of input parameter, and plot generation unit 53 be configured to produce parameter to the two-dimentional plot of correspondence.Plot generation unit supplies data to display system 54, provides thus the plot of data point by demonstration, manifests the clinical state of object to user.Display system can comprise a plurality of display units.
Conventional system or equipment are also scalable so that system can manifest the state of object in the above described manner.This type of upgrading for example can be by providing software module to realize to system, and software module can be depending on parameter available in system and relates to different functionalities.Software module for example can provide in the data medium such as CD or storage card, or provides by communication network.Due to software module utilisation system/monitor definite physiological parameter, therefore, module needn't comprise surpass generate and display parameters to required part.
Equipment or system can be also simple monitoring arrangements, for example, at the inspection work station of remote location.For example, doctor Ke office checks how the screen page is to adjust input parameter so that parameter value roughly remains on the centre of frame to nursing staff's suggestion.Equipment also can be embodied as can be connected to auxiliary facilities or the display unit of collecting the existing system of physiological data from object.In this embodiment, equipment/unit can comprise the functional of software module for example.
In above-mentioned monitoring mechanism, from object, measure to determine that the output parameter of the state of object is no longer the unique parameters relevant with some measuring transducer, but with the current control of some physiological process, relevant parameter is set.In addition, according to the opereating specification calibration plot of relevant parameter, and can on a screen window, show some crucial plots, how the past output parameter that screen window also can illustrate in time responds control.Due to these characteristics, above-mentioned monitoring mechanism make user can fast understanding relevant between the output parameter of controlling to the state of defining objects.In addition, whether plot contributes to user to notice has any one of the physiological process of object not under good control, and makes how adjusting and control setting to get back to the decision of normal condition.
This written explanation is used and comprises that the example of optimal mode discloses the present invention, and also enables those skilled in the art to manufacture and use the present invention.The patentable scope of the present invention is defined by claim, and can comprise other example that those skilled in the art expect.If having from the written language of claim, this type of other example there is no different structures or operational elements, or this type of other example comprises having from the written language of claim and there is no equivalent structure or the operational elements that essence is different, this type of other example is defined in the scope of claim.
List of parts
100 patients/object
101 physiological signals
102 measuring units
103 memorizeies
104 parameter algorithms
105 control and processing unit
106 nursing units/device
107 user interfaces
108 input parameters
109 output parameters
110 display units
111 display adapters
21 physiological process
22 two-dimentional plots
23 points/circle
24 cross
31 fetch one or more input parameters
32 determine one or more corresponding output parameters
33 determine the axle of the calibration of two-dimentional plot
34 present two-dimentional plot
The 41 screen pages
42 two-dimentional plots
The 43 specific symbols of group
44,45 screen windows
51 input parameter unit
52 output parameter unit
53 plot generation units
54 display systems.

Claims (10)

1. for a method for the clinical state of monitored object, described method comprises:
-fetch (31) at least one input parameter (108), wherein each input parameter indication is applied to the control of the corresponding physiological process of described object;
-be each input parameter collection (32) output parameter (109) in described at least one input parameter, to obtain at least one parameter pair that comprises input and output parameter, wherein each output parameter is indicated corresponding physiological process (21) and is depended on the corresponding input parameter by corresponding physiological process thus;
-input operation scope is adhered to (33) to each input parameter, and output function scope is attached to each output parameter, obtain thus at least one input operation scope and at least one output function scope;
-on the two-dimentional plot of special use (22), present (34) each parameter pair, described two-dimentional plot comprises the first axle that represents corresponding input parameter and the second axle that represents corresponding output parameter, wherein said the first axle is calibrated according to the described input operation scope of described corresponding input parameter, and described the second axle is calibrated according to the described output function scope of described corresponding output parameter.
2. the method for claim 1, wherein said collection comprises from pre-definite memory location fetches each output parameter (109) or obtains each output parameter (109) from the physiological signal data obtaining from described object.
3. the method for claim 1, wherein said adhering to comprises described input operation scope is attached to each input parameter, and described output function scope is attached to each output parameter, and at least one low alarm limit from corresponding output parameter in wherein said at least one output function scope extends to the high alarm limit of corresponding output parameter.
4. the method for claim 1, wherein said adhering to comprises described input operation scope is attached to each input parameter, and described output function scope is attached to each output parameter, and at least one in wherein said at least one input operation scope covers the normal span of control of corresponding input parameter.
5. the method for claim 1, wherein said each parameter that presents presents a plurality of two-dimentional plots (22) to being included on the screen of display unit (110).
6. method as claimed in claim 5, also comprises
-described a plurality of two-dimentional plots (22) are divided into a plurality of groups, each group is associated with corresponding physiological process; And
-provide the special symbol (43) of the physiological process that is associated with described group of indication for each group.
7. the method for claim 1, wherein said present to be also included on respective two-dimensional plot, present the successive value that each parameter is right (23,24).
8. for an equipment for the clinical state of monitored object, described equipment comprises:
-input parameter unit (105,51), it is applicable to fetch at least one input parameter, and wherein each input parameter indication is applied to the control of the corresponding physiological process of described object;
-output parameter unit (102,105,52), it is applicable to as each the collection output parameter in described at least one input parameter, to obtain at least one parameter pair that comprises input and output parameter, wherein each output parameter is indicated corresponding physiological process and is depended on the corresponding input parameter by corresponding physiological process thus;
-plot generation unit (105,53), it is configured to input operation scope to be attached to each input parameter, and output function scope is attached to each output parameter, obtains thus at least one input operation scope and at least one output function scope; And
-display unit (105,54), it is applicable to present each parameter pair on the two-dimentional plot of special use, the two-dimentional plot of described special use comprises the first axle that represents corresponding input parameter and the second axle that represents corresponding output parameter, wherein said the first axle is calibrated according to the described input operation scope of described corresponding input parameter, and described the second axle is calibrated according to the described output function scope of described corresponding output parameter.
9. equipment as claimed in claim 8, wherein said output parameter unit (102,105,52) be configured to fetch each output parameter (109) or obtain each output parameter from the physiological signal data obtaining from described object from pre-definite memory location.
10. equipment as claimed in claim 8, at least one low alarm limit from corresponding output parameter in wherein said at least one output function scope extends to the high alarm limit of corresponding output parameter.
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